Mitsubishi 18KU30GSI vs Niigata 18V28AGS
The Mitsubishi 18KU30GSI and Niigata 18V28AGS are both natural gas generator engines in a similar power class. Both are rated at roughly 7,344 kVA. Displacement is 483.5 L versus 432 L. The table below compares their full specifications side by side.
| Specification | Mitsubishi 18KU30GSI | Niigata 18V28AGS |
|---|---|---|
| Headline rating | 7,188 kVA | 7,500 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | 5,750 kWe | 6,000 kWe |
| Standby (60 Hz) | — | — |
| Prime (60 Hz) | — | — |
| Displacement | 483.5 L | 432 L |
| Configuration | L18 | V18 |
| Cylinders | 18 | 18 |
| Rated speed | 750 RPM | 750 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | — | Unregulated |
| Dry weight | 60000 kg | — |
| Origin | Japan | Japan |
Choosing between Mitsubishi 18KU30GSI and Niigata 18V28AGS
Use this comparison as an engineering shortlist, then confirm the complete generator package against load profile, voltage, 50/60 Hz frequency, duty class, emissions rules, cooling margin, altitude, ambient temperature, enclosure design, controller features, and alternator sizing. The Niigata 18V28AGS has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.